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Identification of the Key Fields and Their Key Technical Points of Oncology by Patent Analysis

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  • Ting Zhang
  • Juan Chen
  • Xiaofeng Jia

Abstract

Background: This paper aims to identify the key fields and their key technical points of oncology by patent analysis. Methodology/Principal Findings: Patents of oncology applied from 2006 to 2012 were searched in the Thomson Innovation database. The key fields and their key technical points were determined by analyzing the Derwent Classification (DC) and the International Patent Classification (IPC), respectively. Patent applications in the top ten DC occupied 80% of all the patent applications of oncology, which were the ten fields of oncology to be analyzed. The number of patent applications in these ten fields of oncology was standardized based on patent applications of oncology from 2006 to 2012. For each field, standardization was conducted separately for each of the seven years (2006–2012) and the mean of the seven standardized values was calculated to reflect the relative amount of patent applications in that field; meanwhile, regression analysis using time (year) and the standardized values of patent applications in seven years (2006–2012) was conducted so as to evaluate the trend of patent applications in each field. Two-dimensional quadrant analysis, together with the professional knowledge of oncology, was taken into consideration in determining the key fields of oncology. The fields located in the quadrant with high relative amount or increasing trend of patent applications are identified as key ones. By using the same method, the key technical points in each key field were identified. Altogether 116,820 patents of oncology applied from 2006 to 2012 were retrieved, and four key fields with twenty-nine key technical points were identified, including “natural products and polymers” with nine key technical points, “fermentation industry” with twelve ones, “electrical medical equipment” with four ones, and “diagnosis, surgery” with four ones. Conclusions/Significance: The results of this study could provide guidance on the development direction of oncology, and also help researchers broaden innovative ideas and discover new technological opportunities.

Suggested Citation

  • Ting Zhang & Juan Chen & Xiaofeng Jia, 2015. "Identification of the Key Fields and Their Key Technical Points of Oncology by Patent Analysis," PLOS ONE, Public Library of Science, vol. 10(11), pages 1-18, November.
    • Handle: RePEc:plo:pone00:0143573
    DOI: 10.1371/journal.pone.0143573
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    References listed on IDEAS

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